Calling perl subroutines from the command line

Question

Ok so i was wondering how i would go about calling a perl subroutine from the command line. So if my program is Called test, and the subroutine is called fields i would lik

Answer 1

here is an example:

[root@mat ~]# cat b.pm 
#!/usr/bin/perl
#
#
sub blah {
    print "Ahhh\n";
}
return 1
[root@mat ~]# perl -Mb -e "blah";
Ahhh